/*
 * utf.h
 * 
 * This file is a part of NSIS.
 * 
 * Copyright (C) 2011 Anders Kjersem
 * 
 * Licensed under the zlib/libpng license (the "License");
 * you may not use this file except in compliance with the License.
 * 
 * Licence details can be found in the file COPYING.
 * 
 * This software is provided 'as-is', without any express or implied
 * warranty.
 *
 */

#include "Platform.h"
#include <stdlib.h>
#include <stdio.h>

typedef unsigned short EXEHEADWCHAR_T;


#ifdef _UNICODE
typedef EXEHEADWCHAR_T EXEHEADTCHAR_T;

#else // !_UNICODE
typedef char EXEHEADTCHAR_T;

#define ExeHeadTStrFree free
inline EXEHEADTCHAR_T* ExeHeadTStrAlloc(UINT cb) {return (EXEHEADTCHAR_T*) malloc(cb);}
extern EXEHEADTCHAR_T* UTF8ToExeHeadTStr(LPCSTR StrU8,UINT Codepage);

#endif // ?_UNICODE


/**
 * Tries to peek at the first few bytes in the stream to determine if it is a UTF-8 BOM.
 * If it is a UTF-8 BOM it will eat the BOM, 
 * if it is not it tries its best to restore the data.
 */
extern bool IsUTF8BOM(FILE*fstrm);